Home / 87,440.36-130,889.04-47,359.80

Finding the Fourth Proportional to 87,440.36, 130,889.04 and 47,359.80

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Solution

The fourth proportional to 87,440.36, 130,889.04 and 47,359.80 is: 70,892.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,440.36 : 130,889.04 = 47,359.80 : x
  2. Step 2: Convert to fraction form
    87,440.36/130,889.04 = 47,359.80/x
  3. Step 3: Cross multiply
    87,440.36x = 130,889.04 × 47,359.80
  4. Step 4: Simplify right side
    87,440.36x = 6,198,878,088.16
  5. Step 5: Solve for x
    x = 6,198,878,088.16/87,440.36
  6. Step 6: Final answer
    x = 70,892.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.